Answer:
12 feets
Step-by-step explanation:
Let the area of the pool be Length×width
There will be 2lengths and 2widths as well so the perimeter of the pool will be the addition of all the sides of the pool i.e 2L + 2W = 96... (1)
And since the length of the pool is 3 times its width, we have 
L = 3W... (2)
Substituting equation 2 into 1 to get the width 'W'
2(3W) + 2W = 96
6W + 2W = 96
8W = 96
W = 96/8
W = 12feets
The width of the pool is 12feets
 
        
             
        
        
        
2/5 (x-4)=2x   answer is x= -1
        
             
        
        
        
Answer:
-8
Step-by-step explanation:
x+x+1= -15
2x+1=-15  (group the x's together)
2x= -14 (move the 1 to the right side)
x= -7 
(-7)+(-8) = -15
-8 is the smaller integer 
 
        
             
        
        
        
Answer:
5C 6D
Step-by-step explanation:
5, a^2 = b^2 + c^2
6, 
A is wrong because two distinct lines intersect at 1 point only or 0 (they will never intersect when they are parallel) 
B & C are wrong because lines contain infinite point
E is wrong because 2 parallel lines will never intersect, as the result, their common points = 0
 
        
             
        
        
        
For the first part you need to find 85% of 16,000. its 13,600. you get this by multiplying .85 by 16,000.
for part two, i don't know how to show the work, but 816 is 96% of 850.
sorry about that, but i hope it helps